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# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/pylint-dev/pylint/blob/main/LICENSE
# Copyright (c) https://github.com/pylint-dev/pylint/blob/main/CONTRIBUTORS.txt
# pylint: disable=redefined-outer-name
from __future__ import annotations
import os
from collections.abc import Callable
from pathlib import Path
import pytest
from pylint import checkers
from pylint.checkers import BaseChecker
from pylint.lint import PyLinter
from pylint.lint.run import _cpu_count
from pylint.reporters import BaseReporter
from pylint.testutils import MinimalTestReporter
HERE = Path(__file__).parent
@pytest.fixture()
def tests_directory() -> Path:
return HERE
@pytest.fixture
def linter(
checker: type[BaseChecker] | None,
register: Callable[[PyLinter], None] | None,
enable: str | None,
disable: str | None,
reporter: type[BaseReporter],
) -> PyLinter:
_linter = PyLinter()
_linter.set_reporter(reporter())
checkers.initialize(_linter)
if register:
register(_linter)
if checker:
_linter.register_checker(checker(_linter))
if disable:
for msg in disable:
_linter.disable(msg)
if enable:
for msg in enable:
_linter.enable(msg)
os.environ.pop("PYLINTRC", None)
return _linter
@pytest.fixture(scope="module")
def checker() -> None:
return None
@pytest.fixture(scope="module")
def register() -> None:
return None
@pytest.fixture(scope="module")
def enable() -> None:
return None
@pytest.fixture(scope="module")
def disable() -> None:
return None
@pytest.fixture(scope="module")
def reporter() -> type[MinimalTestReporter]:
return MinimalTestReporter
def pytest_addoption(parser: pytest.Parser) -> None:
parser.addoption(
"--primer-stdlib",
action="store_true",
default=False,
help="Run primer stdlib tests",
)
parser.addoption(
"--minimal-messages-config",
action="store_true",
default=False,
help=(
"Disable all messages that are not explicitly expected when running functional tests. "
"This is useful for finding problems with the @only_required_for_messages / @check_messages "
"decorator, but can also produce false negatives if a functional test file only tests for "
"false positive of messages and thus does not declare which messages are expected."
),
)
def pytest_collection_modifyitems(
config: pytest.Config, items: list[pytest.Function]
) -> None:
"""Convert command line options to markers."""
# Add skip_primer_stdlib mark
if not config.getoption("--primer-stdlib"):
skip_primer_stdlib = pytest.mark.skip(
reason="need --primer-stdlib option to run"
)
for item in items:
if "primer_stdlib" in item.keywords:
item.add_marker(skip_primer_stdlib)
# Add skip_cpu_cores mark
if _cpu_count() < 2:
skip_cpu_cores = pytest.mark.skip(
reason="Need 2 or more cores for test to be meaningful"
)
for item in items:
if "needs_two_cores" in item.keywords:
item.add_marker(skip_cpu_cores)
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